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ANACHEM > Calculating Concentrations > Flashcards

Calculating Concentrations Flashcards

1
Q

Calculating Concentrations

A

Concentration

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2
Q

one strength which have known amounts of solute and solvent in a given quantity of solution.

A

Standard Solution

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3
Q

solutions of relatively low concentration

A

Dilute or Weak

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4
Q

solutions of relatively high concentration

A

Concentrated or Strong

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5
Q

Molarity(M)

A

moles solute / Liter solution

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6
Q

Molality* (m)

A

moles solute / Kg solvent

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7
Q

Normality (N)

A

equivalent weight solute/ Liter solution

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8
Q

Mole Fraction(A)

A

moles solute / total moles solution

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9
Q

% (w/w) =

A

mass solute / mass solution x 100

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10
Q

% (w/v) =

A

mass solute / volume solution x 100

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11
Q

% (v/v) =

A

volume solute / volume solution x 100

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12
Q
  • denotes the number of moles of a given substance per liter of solution.
  • A capital letter M is used to abbreviate the units of mol/L.
A

Molarity

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13
Q

Molarity (M) =

A

moles solute / liters of solution

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14
Q

m of solution =

A

mol solute / kilograms solvent

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15
Q
  • as a proportion of the total number of moles in a solution.
  • Mole fractions are dimensionless quantities.
A

molar fraction

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16
Q

x of solution =

A

mol solute / mol solution

17
Q

Mol% =

A

mole solute / mole solution x 100

18
Q

Normality (N) =

A

Equivalent wt. solute / Liter solution

19
Q

is the only concentration unit that is reaction dependent.

A

Normality

20
Q

When a solution is diluted, ? is added to lower its concentration

A

Solvent

21
Q
  • is a method in chemistry that allows quantitative analysis of the concentration of an unknown acid or base solution.
  • It makes use of the neutralization reaction that occurs between acids and bases, and that we know how acids and bases will react if we know their formula
A

Titration

22
Q

There are three types of Titration

A

1) strong acid and strong base
2) weak acid and strong base
3) strong acid and weak base

ANACHEM (10 decks)

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